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If a signal x(t) is processed through a system to obtain the signal (x(t)^2), then the system is said to be ____________

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If a signal x(t) is processed through a system to obtain the signal (x(t)^2), then the system is said to be ____________

(a) Linear

(b) Non-linear

(c) Exponential

(d) None of the mentioned

This question was posed to me in exam.

The query is from Signals, Systems and Signal Processing topic in chapter DSP – Basic Signaling of Digital Signal Processing

1 Answer

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Best answer
Correct answer is (b) Non-linear

Best explanation: Let the input signal be ‘t’. Then the output signal after passing through the system is y=t^2 which is the equation of a parabola. So, the system is non-linear.

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